Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/10/2026, 18:12

General

  • Target
    ScreenConnect.ClientSetup.exe
  • Size 23.4MB
  • Sample261020-wtaaaacf73
  • SHA256 9dc82b40c40ff9d91d3484ac6d458cc4191208bd07f034b34f690ca9f2746790
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 9 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Drops file in Program Files directory 17 IoCs
  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2984
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\c43f51010b2eefca\ScreenConnect.ClientSetup.msi" SC_EXE_PATH="C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.exe"
      2⤵
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:5104
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4316
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 4E6263A92328781A0EFB68072C946414 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4948
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI64DA.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240739859 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3472
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI6AC7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240741125 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • System Location Discovery: System Language Discovery
        PID:1240
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI73A2.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240743468 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3708
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1032
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 6166B7FC1839D02C8C2B92D9D7EBDAED
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5768
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 7620B92E79F29F81D710FA5762B132F7 E Global\MSI0000
        2⤵
        • Drops file in Windows directory
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:5508
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4740
    • C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-nfykfw-relay.screenconnect.com&p=443&s=09cdcdc0-b3b0-463e-a31e-83a629132985&k=BgIAAACkAABSU0ExAAgAAAEAAQABV4YXHjRKLEJlwg3PzkC6vOKVIyGc66V0smpfao%2fkP3aqa2q%2fDA4IdzAklUjbW6uvT8FheN90XKKv5OLxqWCe%2bSSbW24BnGG2fHGG3FytsV3npR1F6qT4G4LVHq4XCt5CiHPCxaSkbWhhvh%2fdO0URycQQVOwprH7YFs3fbfxWQbIvSroWuvuv82x1oNi0An8S5nn6PTL%2feFVnJR36RCZYMU7VMGP6wZFrZVeEk09mqVaQwZm6xlmuUwMCfUHhskCDCifiO3hzkuLON97P2gfxY%2ftFU02xwTYtaSBw8DShDaZuPUFrZOlJdk%2fBEVvJG9%2b6bPGimNR4NwfQGInyG%2b%2fK"
      1⤵
      • Sets service image path in registry
      • Drops file in System32 directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5976
      • C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe" "RunRole" "38525619-ba09-4497-9fd1-51b3cbdf8416" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2424
      • C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsClient.exe" "RunRole" "4723910f-5bb5-4037-bf9f-e871307b1f5f" "System"
        2⤵
        • Executes dropped EXE
        • Reads the TCP/IP host and domain name from the registry
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:248

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59c0f6.rbs

          • Path C:\Config.Msi\e59c0f6.rbs
          • Size 214KB
          • SHA256 7ef778047b75168363a21558e38d2d8037dfa2fbf4b92b63506fb39e5221b231
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.Client.dll
          • Size 615KB
          • SHA256 787a02b1938e8c1ce52448b8779d2c9c47029664f97185177c2584e8f980abc4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.dll
          • Size 176KB
          • SHA256 579fa008b8c96612163fd8a89a978140a652b3739867772df0711fca148705aa
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 d887f20ec383d7ce3a5727856bf7fa68ceb972108b6d0a5dd9924707e820dc24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 5b2d14e237485c0164d865d8a94f8a8bed28ab0db52c6a7ef99f7ebb9648d324
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.Windows.dll
          • Size 1.9MB
          • SHA256 88dd22f6f0ca70d10c64ca919b0d8b6d73e84c1d567d4b8d15b6e9a9b60d6d8f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 239377f4d2345d2a4ff6e3cbebd83c6edb06db4daea389159d19770a2dfcb80c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (c43f51010b2eefca)\system.config
          • Size 964B
          • SHA256 b64671f55a603384d1864e28a41dce393341afefd0f6c37a86ceb3c4d7d69daf
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 727B
          • SHA256 9732f03480ba7aa7c68b2bf5a6b4e5ac8ab3ca6a019a7a4d51d063de8374a973
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 727B
          • SHA256 c7ee00eb60772fca16236a7e5c8742754ac233935178d5f415ac084d693072a5
          • MD5 SHA1 SHA512 TLSH

          8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_59E89BCE9615F2B61F2F2C691688F111
          • Size 404B
          • SHA256 5d4b892dcd4ca025df8ceba2f1dac4f8352e151cecca31d5b39d01822c77fab5
          • MD5 SHA1 SHA512 TLSH

          C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
          • Size 412B
          • SHA256 28781ef5946c5764d00c6a7bdc6c2c3b042f7b47eae6b538feaa72f3592d96d9
          • MD5 SHA1 SHA512 TLSH

          MSI64DA.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64DA.tmp
          • Size 1.9MB
          • SHA256 1dabfa60015c186a4315f16d46d9e53435dc259c52843e73dac0d04be92f9a84
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64DA.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64DA.tmp-\ScreenConnect.Core.dll
          • Size 1.3MB
          • SHA256 e5fd82d18c2dcaadbfc4b72b56573e819cc3e8ee6406f2edb982cc073dc607bb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64DA.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 cf8505204b1458dac9cb3002fd5bbd5fac43c5b4702aa0153fb4b9a2cfcf954a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI64DA.tmp-\ScreenConnect.Windows.dll
          • Size 1.8MB
          • SHA256 ed1b4eb6c24c85392f692bf5863d9ccb76575051bb605360961b9d7624a371c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6AC7.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI6AC7.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 390KB
          • SHA256 c469358d585fa9f1637a02d194e162e454d90b8dc7e4939f88b36e09b04a7a96
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientSetup.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ScreenConnect\26.6.6.9747\c43f51010b2eefca\ScreenConnect.ClientSetup.msi
          • Size 19.8MB
          • SHA256 2eb910bb665e8613e96684c50ebb717df10d2707d8368426c9a1fced5abd7449
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC8A6.tmp

          • Path C:\Windows\Installer\MSIC8A6.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          kv25jcoq.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c43f51010b2eefca)\kv25jcoq.newcfg
          • Size 683B
          • SHA256 88a2a7fa22f2413dd94199f185632efb51d3e5ea8561fe510ce406ee5deacb2b
          • MD5 SHA1 SHA512 TLSH

          sjyzndky.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c43f51010b2eefca)\sjyzndky.newcfg
          • Size 883B
          • SHA256 d11a228250f76d4497904660cfbdf3130195f969ade0d3d01b88c474d5af4c18
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (c43f51010b2eefca)\user.config
          • Size 520B
          • SHA256 2c5041635e5ee7a7fee68f2d04def2ebd4954f4b3650125877a6432cfa496b4e
          • MD5 SHA1 SHA512 TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 7ac40779fc390d1cdd9a1a01d994890974a686756dc888cefcde3aba886a459c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {b51202a7-d5ac-4399-987d-800736ef11a5}_OnDiskSnapshotProp

          • Path \??\Volume{804c0bee-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{b51202a7-d5ac-4399-987d-800736ef11a5}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 aa4bd560de130f248871a651a89885204e0245ca2ab34fcdc8d1c408bd579720
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1240-81-0x0000000003E30000-0x0000000003E98000-memory.dmp

          memory/2424-235-0x000000001C550000-0x000000001C6D8000-memory.dmp

          memory/2424-231-0x0000000000C60000-0x0000000000DF6000-memory.dmp

          memory/2424-232-0x0000000003050000-0x00000000030EE000-memory.dmp

          memory/2424-233-0x000000001C030000-0x000000001C18A000-memory.dmp

          memory/2424-236-0x0000000002FC0000-0x0000000002FF0000-memory.dmp

          memory/2424-234-0x000000001C370000-0x000000001C550000-memory.dmp

          memory/2984-7-0x0000000006E60000-0x000000000741A000-memory.dmp

          memory/2984-0-0x00000000744E2000-0x00000000744E3000-memory.dmp

          memory/2984-10-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/2984-6-0x00000000066B0000-0x0000000006890000-memory.dmp

          memory/2984-5-0x0000000006630000-0x0000000006698000-memory.dmp

          memory/2984-122-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/2984-11-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/2984-1-0x0000000003FA0000-0x0000000003FA8000-memory.dmp

          memory/2984-3-0x00000000064C0000-0x000000000661A000-memory.dmp

          memory/2984-2-0x0000000003FC0000-0x0000000003FCC000-memory.dmp

          memory/2984-4-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/3472-47-0x00000000053E0000-0x000000000553A000-memory.dmp

          memory/3472-43-0x0000000003190000-0x000000000319C000-memory.dmp

          memory/3472-51-0x0000000005720000-0x0000000005900000-memory.dmp

          memory/3472-39-0x0000000003150000-0x000000000317E000-memory.dmp

          memory/5976-189-0x0000000004290000-0x00000000042E0000-memory.dmp

          memory/5976-213-0x0000000004560000-0x00000000045A1000-memory.dmp

          memory/5976-215-0x0000000004AB0000-0x0000000004B86000-memory.dmp

          memory/5976-211-0x00000000048C0000-0x0000000004952000-memory.dmp

          memory/5976-210-0x0000000004820000-0x00000000048BE000-memory.dmp

          memory/5976-176-0x0000000004640000-0x0000000004820000-memory.dmp

          memory/5976-172-0x0000000004300000-0x000000000445A000-memory.dmp

          memory/5976-166-0x0000000001C60000-0x0000000001C90000-memory.dmp